diff --git a/src/engine/net/client/ClientMessagePump.java b/src/engine/net/client/ClientMessagePump.java
index 96a4912f..e6b6edcb 100644
--- a/src/engine/net/client/ClientMessagePump.java
+++ b/src/engine/net/client/ClientMessagePump.java
@@ -1415,7 +1415,7 @@ public class ClientMessagePump implements NetMsgHandler {
                             int cost = me.magicValue;
                             if(npc.getContractID() == 1201 && me.getItemBase().getName().equals("Prospector"))
                                 cost = 50;
-                            int resourceCost = Warehouse.getCostForResource(me.getItemBase().getUUID());
+                            int resourceCost = (Warehouse.getSellStackSize(me.getItemBase().getUUID()) * Warehouse.getCostForResource(me.getItemBase().getUUID()));
                             if (resourceCost != 0)
                                 cost = resourceCost;
                             if(npc.contractUUID == 900 && me.getItemBase().getUUID() == 1705032){